Automatic fire-extinguisher



(No Model.)

J. R. BROWN.

AUTOMATIC FIRE EXTINGUISHER.

No. 245,916. Patented Aug. 16,1881.

WITNESSES INVENTOR:

xbd am s Prawn-Lithographer. Walhmgton. u. c,

UNITED STATES PATENT OFFICE.

JOSEPH RBROWN, OF PROVIDENCE, ASSIGNOR OF TWO-THIRDS TO HENRY A. STEARNS, OF LINCOLN, RHODE ISLAND, AND JOHN M. HALL, OF WAL- LINGFORD, CONNECTICUT.

AUTOMATIC FIRE-EXTINGUISH ER.

SPECIFICATION forming part of Letters Patent No. 245,916, dated August 16, 1881,

Application filed April 529, 188,9. (N model.)

To all whom tt may concern:

Be it known that I, JOSEPH It. BROWN, of Providence, county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Automatic Fire-Extinguishe ers; and I hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, formingpart of this specification.

The object of this invention is to construct an automatic device that shall be released by the heat of a fire and spread the water in thin sheets over an extended surface.

The invention consists in the peculiar construction of the distribnter and the peculiar arrangement of a check-valve, by means of which the water is kept from contact with the soldered joint, and thus the reliability of the device is increased.

Figure 1 is a side elevation of my improved automatic fire-extinguisher. Fig. 2 is a sectional view of the same, and Fig. 3 is a top view of the same. Fig. ,4 is a side elevation view, and Fig. 5 a section of a modification of 2 my improved automatic fire-extinguisher.

In the drawings, (6 represents a branch pipe connecting with the water-supply pipe of a system of pipes distributed through a building, and connected with a water-supply for extin- 0 guishing fires.

b is an elbow.

0 represents a check valve. The object of this check-valve is to separate the air from the water, so as to prevent the absorption of the air by the water. When the system of pipes is being filled with water the air is driven before it to the extremities of the pipes, where the automatic distribnters are placed, and the check-valve 0 will be raised by the pressure 0t the air, and the air will pass by the valve, and

at each pulsation or sudden increase of pressure the valve will allow air to pass by, but will not allow the air to return or come in contact with the Water. The pressure of confined air above the valve will thus equal the maximum pressure of water in the pipes. Water will therefore not be forced above the valve until the confined air is permitted to escape by the unseating of the device h.

d is the neck of the distributor.

e is the enlargement, provided with slits and aperturesff for distributing the water in thin sheets.

9 is the top disk, in which the device his supported. This disk is screwed into the enlargement e. r

The modification in Figs. 4 and 5 shows the slots ff out at an angle, so as to spread the water more evenly.

The device h is a disk provided at its rear side with a stem, as shown.- It may be concaved, convexed, or plain-surfaced on its face; may be secured, by solder fusible at a low temperature, at its face to the stem or inlet d, or it maybe secured at the stem to the disk g. In either case it must be larger than the inletopenings and arranged to rise only a limited distance, so that it will spread the water in a thin sheet and supply all the outlets with an equal quantity ol water.

To prevent the water from entering the distributer in a body, and to cause the same to spread evenly toward all sides and retain the air, as described, is the main object of this invention.

Having thus described myinvention, I claim as new and desire to secure byLetters Patent 1. The combination, with an automatic fireextinguisher, of a check-valve placed below the automatic distributcr, arranged to operate as described.

2. An automatic tire-extinguisher consisting of a distributer provided with holes or slits to discharge the water, and a device for spreading the water, secured by solder fusible at a low temperature, as described.

' JOSEPH R. BROVN.

Witnesses:

JosEPH A. MILLER, J. A. MILLER, Jr. 

